Older Pocatello ranch with a furnace and no AC? Larry Stegall on what the furnace and ducts decide, sizing, where the condenser goes and the electrical side.

Bonus rooms, basement bedrooms and garage shops the ductwork misses. Larry Stegall on why extending ducts fails and when a mini-split fits in Pocatello.

A rooftop unit keeps a Pocatello shop open until one hot afternoon it does not. Larry Stegall on what to watch from the ground and how to plan service.

A system near the end gives you a planning window most people waste. Larry Stegall covers how to use that year so the changeout happens on your terms.

Not every failure needs somebody tonight. Larry Stegall explains which Blackfoot calls he tells people to hold until morning, and why saying so costs him.

Bought a new build with a heat pump you never picked? Larry Stegall covers how to run it, what to leave alone, and the first winter checks worth doing.

A single room that never warms up usually has nothing to do with the furnace. Larry Stegall explains what actually causes it in older Blackfoot homes.

Cooling systems rarely die without notice. Larry Stegall walks Blackfoot homeowners through the quiet week of warnings that comes before the failure.

A general home inspection will not tell you most of what matters about an inherited HVAC system. What to read yourself and what to ask before you close.

Chubbuck winter air is dry for real reasons. Why room humidifiers fall short, where air sealing matters more, and the honest upper limit in a cold climate.